Issued Patents All Time
Showing 26–35 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6702027 | Gas dissipation chamber for through tubing conveyed ESP pumping systems | David L. Olson | 2004-03-09 |
| RE37995 | Progressive cavity pump with flexible coupling | Donald J. Barrus | 2003-02-18 |
| 6412563 | System and method for enhanced conditioning of well fluids circulating in and around artificial lift assemblies | Albert David William St. Clair, Robert Timothy Dempsey, David L. Olson | 2002-07-02 |
| 6328111 | Live well deployment of electrical submersible pump | John L. Bearden, Kenneth T. Bebak, Earl B. Brookbank, Don C. Cox, Ronald S. Fordyce +1 more | 2001-12-11 |
| 6289990 | Production tubing shunt valve | David B. Dillon, David L. Olson | 2001-09-18 |
| 6193474 | Guide member details for a through-tubing retrievable well pump | — | 2001-02-27 |
| 5988992 | Retrievable progressing cavity pump rotor | David B. Dillon, Edward C. Kanady, David L. Olson | 1999-11-23 |
| 5954483 | Guide member details for a through-tubing retrievable well pump | — | 1999-09-21 |
| 5842521 | Downhole pressure relief valve for well pump | Stephen T. Shanahan, David B. Dillon | 1998-12-01 |
| 5501580 | Progressive cavity pump with flexible coupling | Donald J. Barrus | 1996-03-26 |